joinEnv - Just like joinPath but with ; for windows else :

[solvingj]

Description

Title basically says it all. Once it's possible to prepend paths to the PATH via env (ideally fixed in #2034) , it should have a native cross-platform syntax for doing it cleanly on windows or posix platforms.

env:
    PATH: "{{joinEnv "{{.TASKFILE_DIR}}/tools/bin" .PATH}}"

or perhaps

env:
    BIN_DIR: "{{joinPath {{.TASKFILE_DIR}} "tools" "bin"}}"
    PATH: "{{joinEnv .BIN_DIR .PATH}}"

Additionally, or alternatively, add a special variable: PATHSEP for platform specific path separation in env vars.

env:
    PATH: "{{{{.TASKFILE_DIR}}/tools/bin{{.PATHSEP}}{{.PATH}}"

[andreynering]

This sounds like an easy one. Open for community pull requests.

[pd93]

Happy with this too. A couple of implementation notes:

• Separators
  • Windows uses ;
  • Linux/MacOS use :
• I think there is no harm in a "join" function and a variable being added.
• PATHSEP is highly ambiguous. Something like PATH_ENV_SEPARATOR
  • I prefer clarity over short names
  • _ as a word separator in var names
• Same for joinEnv. This should be something like joinPathEnv
  • Same reasons for naming as the variable
  • Naming lines up with the variable
• We don't actually have a FILEPATH_SEPARATOR
  • This could be added for parity
  • Add both to the templating reference docs under system variables.

[solvingj]

Agh... there's a func in there defined as os() which breaks importing os.PathListSep. How you want me to deal with it? Rename os()/arch() to goos()/goarch() perhaps?